vitesanchezpatricia
vitesanchezpatricia vitesanchezpatricia
  • 01-09-2020
  • Mathematics
contestada

cuál es la suma de los primeros 30 términos de la sucesión 1,2,3,4​

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 01-09-2020

Answer:

465

Step-by-step explanation:

1 + 2 + 3 + ... + n = n(n + 1)/2

1 + 2 + 3 + ... + 30 = 30(31)/2 = 465

Answer Link

Otras preguntas

I really need this answered. I need to find the area ​
the sum of two numbers A and B is 25. if one fourth of A is 1 more than one third of B, find the number A.
please solve this please​
can someone answer this or am i right
Which of these statements is true about autotrophs, but not heterotrophs? They use sugar and oxygen to make carbon dioxide and water. They use chlorophyll and o
Help!! What is equivalent to the expression -2x(-4 + x) A. 8x - 4x B. -8x + 4x² C. -8x + 2x² D. 8x + 2x² E. 8x - 2x²
Write a linear equation that goes through the points (-1,-10) and (5,2).
13 R S 12 What's the length of QR? A) 1 B) 17.7 C) 6.7 OD) 5
the actual length of wall c is 4 m . to represent wall c noah draw a segment 16cm long what scale is he using explain your reasoning
If 400 g of chocolate sells for $12, "how much is the cost per kilogram?